Pumping-engine



(No Mdel.)

W. CLARKSON.

PUMPING ENGINE. No. 496,294. Patented Apr. 25, 1893.

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WILLIAM CLARKSON, OF CLEBURNE, TEXAS.

PUMPlNG-ENGINE.

' SPECIFICATION forming part 0f Letters Patent N0. 496,294, dated April25, 1893.

Application filed December 20, 189,2- Serial No. 455,774. (No model.)

To all whom it may concern.-

Beit known that I, WILLIAM CLARKsoN, a citizen of the United States,residing at Cleburne, in the county of Johnson and State of Texas, haveinvented certain new and useful Improvements in Pumping-Engines; and Ido hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

My invention relates to that class of pumping engines employing acombined piston rod and plunger acting in the same Vertical line andcarrying a crank pin boX and cross heads for driving the governing flyWheel.

The object of my invention is to reduce the cost of construction of thisclass of pumping engine, to simplify and facilitate the mounting anddismounting of the same and to aord ready access to the packing ends ofthe steam and water cylinders.

It is also my object to provide an improved adjustable yoke foroperating the crank in lieu of the sliding box and cross heads.

In the accompanying drawings forming a part of this specification Figure1, is a'side elevation partly Iin section. Fig. 2, is a detail viewshowing a modification of the adjustable yoke.

Referring more particularly to the drawings A, denotes the steamcylinder and B, the Water cylinder.

C. denotes the bed plate and D, a standard.

E. denotes the piston rod and plunger having the steam piston C' castintegral therewith.

F, and F', denote two arms secured to the piston rod by screw-threadedbolts f, f', and clamp nuts n, 'n'. The arm F, is rigidly secured to thepiston rod by the bolt f, and nut n and the arm F', is adjustablysecured to said rod by the bolt f', and nut n', said rod having avertical slot f2, cut therein as shown in dotted lines to receive saidbolt f'.

G, denotes a set screw which passes through the rear ends of the arms F,F', said ends projecting to one side of the piston rod as shown.

As shown in Fig. l, I cast the steam and water cylinders the standardand bed plate in one piece, the standard meeting the steam cylinderabove the lower or packing end thereof, and the water cylinder at apoint below its upper or packing end. Thus the packing ends of eachcylinder are disengaged and readily accessible upon all sides. Thisconstruction also gives greater strength besides always insuring theproper alignment of the two cylinders.

By dispensing with a multiplicity of parts I greatly decrease the costof construction and provide a pump frame withl steam and -watercylinders mounted intact and ready to receive the piston, piston-rod,and plunger avoiding the careful adjustment necessary where these partsare constructed separately, in mounting the same afterward.

My piston, piston rod, and plunger having the adjustablev yoke aredesigned especially for this construction and are readily mounted in thesame and as readily dismounted for purposes of repair and renewal. Tomount the same the plunger end of the piston rod is first passed throughthe steam cylinder. The adjustable yoke is then secured in place and theplunger mounted inthe water cylinder.

It will be seen that by my construction the crank is placed t one sideof the piston rod and plunger and the crank pin works in the yoke to andfrom said rod.

To adjust the yoke in case of Wear in the same, the clamp nu-t n', isfirst released and the screw G, operated to move the arm F', nearer tothe arm F, until the proper adjustment is made. The nut n' is thentightened to clamp the arm in position.

nect the adjustable yoke to the piston rod and plunger besides the meansshown.- As the arms F, F', are only designed to operate the crank andvalve gear they may be lightly made.

In Fig. 2, I show a modification of the adjustable yoke, in which thearms F, F', are bent giving an inclined bearing surface for the crankpin to avoid a dead center.

Having thus shown and described my invention, what I claim, and desireto secure by Letters Patent, is-

In a vertical direct acting pumping engine In testimony whereofI aiiixmysignature in having a combined piston rod and plunger, presence of twoWitnesses. the combination of the adjustable yoke oon- Sisting of twoarms one of which is rigidly WILLIAM CLARKSON. and the other adj ustablysecured to said piston rod or plunger said arms being connectedTitnessesz and adjusted by a set screw substantially as A. J. CLENDENEN,

shown and described. J. I. KILPATRICK.

